The U.S. soccer team got an inspired endorsement from unexpected quarters ahead of Thursday's critical group-stage clash with Germany in Recife, Brazil.

Will Ferrell crashed a World Cup pep rally Wednesday night in the port city, assuring the American fans on hand that he'd stop at nothing to ensure a U.S. victory -- though a draw (or even a loss) could see the team through to the knockout stage.

"I’m going to bite every German player I have to," Ferrell told the crowd.

Ferrell isn't the only star feeding off the unprecedented World Cup enthusiasm. A certain pro wrestling legend also threw his hat into the ring.

Watcha gonna do Germany when the USA runs wild all over YOU!!! Brother,USA Soccer,Lets Do It!!!!! HH